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Repulsive gravity of light beams. (English) Zbl 1343.83005

Summary: The analysis of some exact solutions of Einstein equations, describing gravitational waves produced by light, shows that there can be repulsion between light beams. This is due only to the spin-1 character of the solutions and not to the introduction of other inputs external to General Relativity. Cosmological relativistic jets give an example of a such phenomenon.

MSC:

83C05 Einstein’s equations (general structure, canonical formalism, Cauchy problems)
83C15 Exact solutions to problems in general relativity and gravitational theory
83C35 Gravitational waves
35Q05 Euler-Poisson-Darboux equations
85A25 Radiative transfer in astronomy and astrophysics
53Z05 Applications of differential geometry to physics
78A25 Electromagnetic theory (general)
83C22 Einstein-Maxwell equations
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